Comments on: Unintended Consequences http://www.orphanroad.com/blog/2009/12/unintended-consequences Puget Sound Transportation and Land Use Issues Fri, 10 Feb 2012 16:55:17 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Matt the Engineer http://www.orphanroad.com/blog/2009/12/unintended-consequences/comment-page-1#comment-1268 Matt the Engineer Wed, 30 Nov -0001 00:00:00 +0000 http://wp.orphanroad.com/?p=1895#comment-1268 Oops. Maybe we can go back to <a href="http://www.trafficlights.com/tlites/semaphore.jpg" rel="nofollow">these</a>. Oops. Maybe we can go back to these.

]]> By: trafficmike http://www.orphanroad.com/blog/2009/12/unintended-consequences/comment-page-1#comment-1269 trafficmike Wed, 30 Nov -0001 00:00:00 +0000 http://wp.orphanroad.com/?p=1895#comment-1269 I knew that some northern cities were experiencing this for some time. What complicates matters is that the energy bill passed during George W. Bush's time required that all traffic signals only have bulbs which met certain energy use criteria. LED are the only lights which meet this criteria. Now, any roadway user who approaches a dark or inoperating signal is supposed to treat it like an all-way stop. I would suspect that is the case here as well. Additional options given to jurisdictions now include marking the edge of the back plate of a traffic signal head with a reflective yellow border. This will help identify a traffic signal location and whether or not it is operating. I knew that some northern cities were experiencing this for some time. What complicates matters is that the energy bill passed during George W. Bush’s time required that all traffic signals only have bulbs which met certain energy use criteria. LED are the only lights which meet this criteria.

Now, any roadway user who approaches a dark or inoperating signal is supposed to treat it like an all-way stop. I would suspect that is the case here as well. Additional options given to jurisdictions now include marking the edge of the back plate of a traffic signal head with a reflective yellow border. This will help identify a traffic signal location and whether or not it is operating.

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